Node Operator Facility API Indications

The Node Operator Facility API generates indication verbs to notify a node operator about changes in the node. Indication verbs use the following general structure:

typedef struct indication_hdr
           {
             unsigned short  opcode;         /* verb operation code      */
             unsigned char   reserv2;        /* reserved                 */
             unsigned char   format;         /* format                   */
             unsigned short  primary_rc;     /* primary return code      */
             unsigned long   secondary_rc;   /* secondary return code    */
             unsigned char   data_lost;      /* previous indication lost */
           } INDICATION_HDR;